QR code Component Using HTML and CSS

HTML:

• Every webpage needs a <main> that wraps all of the content, except for <header> and footer>. This is vital for accessibility, as it helps screen readers identify a page's "main" section. Wrap the card in a <main>.

• The image has meaning, so it must have proper alt text. Write something short and descriptive, without including words like "image" or "photo". Screen readers start announcing images with "image", so an alt text of "image of qr code" would be read like this: "image, image of qr code". The alt text must also say where it leads(the frontendmentor website). A good alt text would be "QR code leading to the Frontend Mentor website."

• None of the elements in the card need to be wrapped in their own <div>.

• .attribution should be a <footer>, and you should use <p> for the text inside.

CSS:

• Including a CSS Reset at the top is good practice.

• I like to add 1rem of padding on the body, to ensure the card doesn't touch the edges on small screens.

• Remove all margins.

• To center the card horizontally and vertically, I would use Flexbox on the body:

display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
min-height: 100svh;

And also gap: 2rem, to make sure the footer stays separate from the main.

• Remove all widths and heights in px.

• Add a max-width of around 20rem on the card, to prevent it from getting too wide on larger screens.

• Since all of the text should be centered, you only need to set text-align: center on the body, and remove it elsewhere. The children will inherit the value.

• On the image, add display: block and max-width: 100% - the max-width prevents it from overflowing its container. Without this, an image would overflow if its intrinsic size is wider than the container. max-width: 100% makes the image shrink to fit inside its container.

• To create the space between the image and the edge of the card, set padding on all 4 sides of the card:padding: 16px;.